The dynamical structure of the habitable zone in the HD 38529, HD 168443 and HD 169830 systems
The dynamical structure of the habitable zone in the HD 38529, HD 168443 and HD 169830 systems
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DOI：
10.1111/j.1365-2966.2004.07845.x
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发表时间：
2004-07
影响因子：
4.8
通讯作者：
B. Érdi;R. Dvorak;Z. Sándor;E. Pilat-Lohinger;B. Funk
中科院分区：
文献类型：
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作者：
B. Érdi;R. Dvorak;Z. Sándor;E. Pilat-Lohinger;B. Funk
研究了多个系外行星系统HD 38529、HD 168443和HD 169830中宜居带的动力学结构。通过使用长时间数值积分和快速混沌检测方法，表明这三个系统的宜居带大多是混沌的。仅在HD 38529系统中，两颗已知行星之间存在一个稳定区域，靠近宜居带的内边缘，那里可能存在第三颗行星。该区域对于较大外行星的大范围轨道偏心率和质量来说是稳定的。稳定区域由高阶平均运动共振划分，并进行了详细研究。由于行星质量大和轨道偏心率大，高阶共振似乎在系外行星系统中很重要。
The dynamical structure of the habitable zone in the multiple exoplanetary systems HD 38529, HD 168443 and HD 169830 is investigated. By using long-time numerical integration and fast chaos-detection methods, it is shown that the habitable zone of all three systems is mostly chaotic. There is a stable region between the two known planets only in the system HD 38529, near the inner edge of the habitable zone, where a third planet could exist. This region is stable for a wide range of orbital eccentricity and mass of the larger outer planet. The stability region is divided by higher-order mean motion resonances, which are studied in detail. It seems that higher-order resonances are important in exoplanetary systems due to the large planetary masses and large orbital eccentricities.